Amazon today announced Kindle Previewer for HTML5, which will let you preview Kindle books before you buy them on any device with a browser. That'll be huge improvement over having to preview it on a Kindle, and it's coming soon.

The new service will be available "in the coming weeks," according to an Amazon blog post, and will show ebook previews that can be accessed from Amazon.com. You'll be able to read a sample chapter, and if you decide to buy a book it'll be downloaded to your Kindle or Kindle app.